Support – Knowledge Base

Magento 2.1.8 and Redis issue

After updating to Magento 2.1.8, some of our customers experience a slower website. This could be caused by an issue with Redis, as mentioned on the Magento 2 Github.

Solution

If you experience a slower webshop after upgrading, follow below steps:

Use MageReport to see if Redis memory use is lower than normal and not filling up, and check if this corresponds with higher CPU usage and other performance issues. If so, this could indicate you are experiencing this issue

Check the nginx error.log in /var/log/nginx if the below error is present